High-end sound from the improved version of ProAc's well-known little wonders. Matching pair, in excellent functional and appearance condition, with the exception of two small bumps in the corners, which of course do not affect their performance at all and are not visible but only from very close up, as can be seen in the photos. With their covers like new. SPECS: Nominal impedance 10 ohms Recommend amplifiers 5 – 50W Frequency response 55Hz – 30kHz Sensitivity 86dB linear for 1 watt at 1 meter Bass/Midrange drivers ProAc 127mm (5”) Pagina Mica cone with acoustic coating and copper excel magnet system with solid copper phase plug. Tweeter ProAc 25mm (1”) ProAc silk dome air cooled and inner damping CrossoverFinest components on dedicated circuit board. Multistrand oxygen free copper cable throughout. Split for optional Bi Wiring and Bi Amplification. HEIGHT 305mm WIDTH 191mm DEPTH 159mm WEIGHT each 5.5kg Photos are of the actual speakers for sale and a part of their description.